The app allows women to choose a guy who then gives reminders about a monthly self breast exam. It also reminds women to check with a doctor if she finds anything unusual.

"At Rethink Breast Cancer, for us it's really all about trying to do things in a way that really break through the clutter and make sure the messages get out there and be positive and upbeat," Rethink's Alison Gordon said.

Rethink Breast Cancer, based out of Toronto, has a mission to raise breast cancer awareness among women under 40. But it's had requests to add older men to the app as well.